Home / 54,257.97-81,390.86-18,718.77

Finding the Fourth Proportional to 54,257.97, 81,390.86 and 18,718.77

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Solution

The fourth proportional to 54,257.97, 81,390.86 and 18,718.77 is: 28,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,257.97 : 81,390.86 = 18,718.77 : x
  2. Step 2: Convert to fraction form
    54,257.97/81,390.86 = 18,718.77/x
  3. Step 3: Cross multiply
    54,257.97x = 81,390.86 × 18,718.77
  4. Step 4: Simplify right side
    54,257.97x = 1,523,536,694.85
  5. Step 5: Solve for x
    x = 1,523,536,694.85/54,257.97
  6. Step 6: Final answer
    x = 28,079.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.